Low severity · published Oct 6, 2026
CVE-2026-75820
Integer Truncation Leading to Heap Corruption in GNU Aspell
1.8
CVSS
0.1%
EPSS
No
On KEV
Description
GNU Aspell contains an integer truncation vulnerability in the WritableDict::add() function in modules/speller/default/writable.cpp. When loading a personal wordlist, the word length is stored as a single byte, causing truncation for words whose length is a multiple of 256. This leads to heap corruption. An attacker can exploit this by convincing a user to run aspell with a crafted personal wordlist containing such a word, resulting in denial of service.
This issue was fixed in commit 782ce94e4dc71eaec4ee1bd945eb3b9c47c5387d which will be released in version 0.60.8.3.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Aspell · GNU
before 0.60.8.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-75820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-75820
third-party-advisory
https://cert.pl/en/posts/2026/10/CVE-2026-75818
product
http://aspell.net/
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